Overview

The GMI GasTrEx is a hazardous area transmitter sensor unit which, when used along with one of our extensive range of flammable, toxic or oxygen deficiency, flameproof detection heads provides continuous, robust and accurate protection to personnel and property.

Features

• Common electronic platform - simply fit the correct “personality” module unit
• Detection head may be fitted locally or remote from transmitter unit
• Uses well proven, reliable sensor technology including catalytic, electrochemical, PID and infra-red sensor types
• Fully programmable, including alarm set points, latching or non-latching alarm relays, energised or de-energised alarm relays
• Simple but secure non-intrusive, one-man calibration and configuration using GMI magnetic wand
• Ingress protection IP 66
• Available in display or non-display versions
• Available in marine grade aluminium or stainless steel versions
• Multiple output configuration allows easy interface to external control panel
• Large clear backlit LCD display and high intensity LED indication
• Integral mounting holes allows easy installation
• Optional on board relays provide local alarms - 3 alarm and 1 fault
• 3 / 4 wire operation, sink / source / isolated / passive / active
• ATEX certified for Zone 1 / 2 hazardous area

Specification

Measuring Ranges	Sensor Type	Resolution
GMS Flammable: 0-100% LEL GMS Flammable (pending): 0-100% LEL GMS Carbon Dioxide (pending): 0-5% Vol GMS Oxygen: 0-25% Vol GMS Hydrogen Sulphide: 0-100ppm GMS Carbon Monoxide: 0-100ppm GMS Carbon Monoxide: 0-500ppm GDS Sulphur Dioxide: 0-10ppm GDS Nitrogen Dioxide: 0-10ppm GDS Hydrogen: 0-2000ppm GDS Hydrogen Cyanide: 0-25ppm GDS Nitric Oxide: 0-100ppm GDS Hydrogen Chloride: 0-10ppm GDS Ammonia: 0-100ppm Ethylene Oxide: 0-25ppm	Catalytic bead Infra-Red  Infra-Red Electrochemical Electrochemical Electrochemical Electrochemical Electrochemical Electrochemical Electrochemical Electrochemical Electrochemical Electrochemical Electrochemical Electrochemical	1% LEL 1% LEL 0.1% Vol 0.1% Vol 1ppm 1ppm 1ppm 0.1ppm 0.1ppm 1ppm 0.1ppm 1ppm 0.1ppm 1ppm 0.1ppm
Outputs	Environment
Linear 4-20mA (isolated sink or source) Over range - 22 mA Fault/Cal mode - 3mA	Temperature: - 20 Deg.C to + 40 Deg.C - 20 Deg.C to + 50 Deg.C (pending) Humidity: 0 - 90%  non-condensing
Display	Alarms
LCD Alpha numeric backlit display Three high visibility red alarm LED's	A1, A2, A3 and Fault Latching / Non-Latching , >/<, Alarm relays (optional) 24 V dc @ 1Amp Energised / De-Energised
Physical Properties
Weight (excluding detection heads) 2.01kgs (4.4 lbs) Aluminium 2.65 kgs (5.8 lbs) Stainless steel Construction: Copper free aluminium or Stainless steel 316 option	Certification: ATEX II 2G Ex d IIC T6 Gb IECEx SIR 06.0016X (used with GDS sensors) Protection Rating: IP66

Aplications

• Chemical Plants
• Pharmaceuticals
• Water Treatment Plants
• Steel Plants
• Power Plants
• Petro-chemical Plants
• General Industry
• Heavy industry
• Refineries

Key Product Features

• ATEX Zone 1/2 Certified
• Programmable Alarms 
• Latching/Non-Latching Relays 
• Non Intrusive Calibration
• Hi-Viz LCD and LED Indicators